Jellyfish as a species are actually older than dinosaurs and sharks.
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
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Ants have tiny magnetic compasses in their antennae which help them navigate.
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